Storage case



FIG. 1 is a perspective view of a storage case showing my new design;

FIG. 2 is a front elevation thereof; the rear elevation being a mirror image thereof;

FIG. 3 is a left side elevation thereof; the right side elevation being a mirror image thereof;

FIG. 4 is a top plan view thereof; and

FIG. 5 is a bottom plan view thereof. 

The ornamental design for a storage case, as shown and described. 